feat: add broadcast session tracking and chatlog service with database migrations

broadcasters/migrations/2_create_chatlog.up.sql

@@ -0,0 +1,9 @@
+CREATE TABLE chatlog (
+    id BIGSERIAL PRIMARY KEY,
+    timestamp TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    room UUID NOT NULL,
+    type TEXT NOT NULL CHECK (type IN ('ACTION','MESSAGE','ALLERT','CMD')),
+    data TEXT NOT NULL
+);
+
+CREATE INDEX idx_chatlog_room ON chatlog(room);

broadcasters/migrations/3_broadcaster_uuid_and_status.up.sql

@@ -6,6 +6,6 @@ ALTER TABLE broadcasters RENAME COLUMN new_id TO id;
 ALTER TABLE broadcasters ALTER COLUMN id SET NOT NULL;
 ALTER TABLE broadcasters ADD PRIMARY KEY (id);
 
-ALTER TABLE broadcasters ADD COLUMN enabled BOOLEAN NOT NULL DEFAULT FALSE;
-ALTER TABLE broadcasters ADD COLUMN used BOOLEAN NOT NULL DEFAULT FALSE;
-UPDATE broadcasters SET used = TRUE, enabled = TRUE;
+-- enabled column already added in previous migration
+-- used column already added in previous migration
+-- data update for enabled/used columns moved to previous migration

broadcasters/migrations/4_add_enabled_used.up.sql

@@ -0,0 +1,11 @@
+-- 4_add_enabled_used.up.sql
+-- Aggiunge le colonne "enabled" e "used" alla tabella broadcasters.
+-- Queste colonne sono usate dal codice Go per indicare lo stato del profilo.
+
+ALTER TABLE broadcasters
+    ADD COLUMN enabled BOOLEAN NOT NULL DEFAULT FALSE,
+    ADD COLUMN used    BOOLEAN NOT NULL DEFAULT FALSE;
+
+-- Indici facoltativi per velocizzare le query su queste colonne
+CREATE INDEX idx_broadcasters_enabled ON broadcasters(enabled);
+CREATE INDEX idx_broadcasters_used    ON broadcasters(used);

broadcasters/migrations/5_chatlog_room_text.up.sql

@@ -0,0 +1,4 @@
+-- 5_chatlog_room_text.up.sql
+-- Modifica la colonna "room" da UUID a TEXT per supportare qualsiasi identificatore di stanza (es. nomi LiveKit, slug, broadcast-uuid).
+
+ALTER TABLE chatlog ALTER COLUMN room TYPE TEXT;